Boundary conditions for the influence of unfamiliar non-target primes in unconscious evaluative priming: The moderating role of attentional task sets

Evaluative priming by masked emotional stimuli that are not consciously perceived has been taken as evidence that affective stimulus evaluation can also occur unconsciously. However, as masked priming effects were small and frequently observed only for familiar primes that there also presented as visible targets in an evaluative decision task, priming was thought to reflect primarily response activation based on acquired S–R associations and not evaluative semantic stimulus analysis. The present study therefore assessed across three experiments boundary conditions for the emergence of masked evaluative priming effects with unfamiliar primes in an evaluative decision task and investigated the role of the frequency of target repetition on priming with pictorial and verbal stimuli. While familiar primes elicited robust priming effects in all conditions, priming effects by unfamiliar primes were reliably obtained for low repetition (pictures) or unrepeated targets (words), but not for targets repeated at a high frequency. This suggests that unfamiliar masked stimuli only elicit evaluative priming effects when the task set associated with the visible target involves evaluative semantic analysis and is not based on S–R triggered responding as for high repetition targets. The present results therefore converge with the growing body of evidence demonstrating attentional control influences on unconscious processing.     

分析思维对冲动购买意向影响的研究

采用三个研究探讨分析思维对冲动购买意向的影响。研究1以146名大学生为被试,采用分析思维任务和冲动购买意向问卷,考察分析思维与冲动购买意向的关系;研究2招募了65名大学生被试,研究3招募了62名大学生被试,分别通过视觉启动和组词任务启动两个范式探讨启动分析思维对冲动购买意向的影响。结果发现,分析思维与冲动购买意向显著负相关,无论是视觉还是组词启动分析思维都能减少冲动购买意向。     

Color‐specific filtering of rival binocular inputs induced by priming1

Abstract: In a situation where the two eyes separately receive two dissimilar images such as a blue square and a red square, the brain is forced to resolve competitive interpretations of the visual inputs. Earlier studies have indicated that adaptation to one of two rival images can control the following competitive perception. Consistent with those studies, the present experiments revealed that immediately after a brief presentation of a color (priming stimulation) to the two eyes, subjects dominantly perceived the other color out of the chromatic rivalry. This effect showed an interocular transfer even if indirect monocular priming was employed, but the filtering out of a primed color did not occur when an unprimed rival image was removed from the other eye. These facts suggest that binocular feature‐detection processes in the human visual system might be responsible for the priming effect on rival images.     

不同情绪模式的图片刺激启动效应

探讨了不同情绪模式的图片启动效应。选取大学生被试240名,将其分成4组,一个实验组和一个控制组,实验组组分别施加愉快、悲伤和恐惧情绪刺激,控制组施加中性刺激,然后检测4个组的情绪变化情况。结果发现,通过图片产生的情绪启动效应是明显的,实验组的情绪强度都超过控制组,尤其是愉快情绪和悲伤情绪,与控制组差异显著。研究还发现了情绪启动效果随时间而发生变化的趋势,消极情绪（悲伤情绪和恐惧情绪）随着时间的推移,强度锐减,在3分钟内基本恢复正常;但是,在短时间内（5分钟）,积极情绪（愉快情绪）随着时间的推移而产生了增长的趋势,这种趋势可能是由于人的心理促进作用造成的     

共情与中国民族音乐情绪识别的关系：来自ERP的证据

音乐情绪识别能力是利用音乐开展情绪调节的基本条件。传统的以五声音阶为基础的具有独特韵味的中国民族音乐反映了中国人独有的情感和价值观念, 在情绪调节和音乐治疗方面具有积极的作用, 是研究音乐情绪识别的有效音乐刺激。本研究采用跨通道情绪启动范式, 通过人际反应指针问卷筛选出高、低共情组被试各36人参加脑电实验, 考察共情能力对中国民族音乐情绪识别的影响。脑电数据显示, 在进行中国民族音乐情绪内隐识别时, 将宫调和羽调音乐作为启动刺激, 诱发了中期的P2、N400以及晚期正成分LPC (Late Positive Component)。低共情组P2和N400成分的波幅大于高共情组, 高共情组LPC成分的波幅大于低共情组。本研究第一次从电生理层面考察了不同共情能力的个体在进行中国民族音乐情绪识别时的神经反应差异。高低共情组在中国民族音乐情绪识别不同阶段的注意投入可能影响了其对音乐刺激的感受, 进而影响音乐情绪识别。     

Memory load as a cognitive antidote to performance decrements in data entry

In two experiments, subjects trained in data entry, typing one 4-digit number at a time. At training, subjects either typed the numbers immediately after they appeared (immediate) or typed the previous number from memory while viewing the next number (delayed). In Experiment 2 stimulus presentation time was limited and either nothing or a space (gap) was inserted between the second and third digits. In both experiments after training, all subjects completed a test with no gap and typed numbers immediately. Training with a memory load improved speed across training blocks (Experiment 1) and eliminated the decline in accuracy across training blocks (Experiment 2), thus serving as a cognitive antidote to performance decrements. An analysis of each keystroke revealed different underlying processes and strategies for the two training conditions, including when encoding took place. Chunking (in which the first and last two digits are treated separately) was more evident in the immediate than in the delayed condition and was exaggerated with a gap, even at test when there was no gap. These results suggest that such two-digit chunking is due to stimulus encoding and motor planning processes as well as memory, and those processes transferred from training to testing.     

Disociaciones entre pruebas implícitas y explícitas de memoria: significado e implicaciones teóricas

Resumen

Las disociaciones entre pruebas implícitas y explícitas de memoria se han convertido últimamente en el fenómeno más rico e ilustrativo teóricamente de que la memoria se manifiesta tanto de una forma directa o explícita como de una forma indirecta o implícita. La distinción entre memoria implícita y explícita ha proporcionado un marco teórico y de trabajo extremadamente fructífero para aumentar nuestro conocimiento sobre la naturaleza y arquitectura de la memoria. En este trabajo se presenta una amplia revisión de las disociaciones entre pruebas implícitas y explícitas de memoria, las múltiples variables que las producen, las distintas poblaciones susceptibles de generarlas y las explicaciones más relevantes sobre su significado. De entre estas explicaciones destacan: 1) la que considera que las disociaciones son el resultado de diferentes procesos y 2) la que entiende que reflejan diferentes sistemas de memoria. Entre los proponentes de ambas explicaciones se ha desarrollado un debate que ha llevado a una nueva concepción de la naturaleza y arquitectura del sistema de memoria que da fundamento a los efectos de priming.     

海洛因戒断者的阈下情绪启动研究

研究表明海洛因戒断者的情绪加工异常,但其阈下情绪加工是否异常尚无定论。本研究采用阈下情绪启动范式,考察其阈下情绪加工能力。结果：戒断组的反应时显著高于控制组;两组中,相比不一致、控制状态,一致状态反应时均显著最短;在戒断组中,不一致状态的反应时显著大于控制状态,负性图片的反应时显著大于正性图片,而在控制组中差异不显著。结论：戒断者存在阈下情绪启动效应,阈下情绪加工存在正性偏向,且能力弱于正常人。     

Dissociating automatic associations: Comparing two implicit measurements of race bias

Weak correspondence across different implicit bias tasks may arise from the contribution of unique forms of automatic and controlled processes to response behavior. Here, we examined the correspondence between estimates of automatic and controlled processing derived from two sequential priming tasks with identical structure and timing designed to separately measure stereotypic (Weapons Identification Task; WIT) and evaluative (Affective Priming Task; APT) associations. Across two studies using predominantly White samples, three consistent patterns emerged in the data: (a) stereotypic bias was stronger for Black targets, whereas evaluative bias was stronger for White targets; (b) overall response accuracy bias correlated modestly across the two tasks; and (c) multinomial processing tree estimates of controlled processing corresponded much more strongly than estimates of automatic processing. These findings support models positing distinct learning and memory systems for different forms of race bias, and suggest that these differing forms contribute to estimates of automatic associations.     

词汇加工初期语义属性的激活程度:来自ERP的证据

运用事件相关脑电位（ERP）技术,采用快速掩蔽启动范式和Go/Nogo范式,探讨汉语重复启动和语义相关启动中语义激活程度的差异和特点。实验中要求被试执行一个额外的语义判断任务,对关键刺激不做明显的行为反应。结果发现,在重复启动条件下获得了稳定的N400效应,语义相关启动条件下没有N400效应;重复启动和语义相关启动条件均未产生N250效应。在较短的SOA条件下,词频对语义的激活和加工不产生影响。